1. A 10 N object rests on a 10° incline. What is the normal force? What is the parallel force? A 10 kg object rests on a 10° incline. What are the normal and the parallel forces?
2. A 5 N block slides down a 20° incline at constant speed. What is the frictional force?
3. What force is needed to push a 15 N object up a 20° incline at constant speed when the coefficient of friction is 0.30?
4. What is the acceleration of a 20 N object that is pulled up a 30° incline by a 25 N force? The coefficient of friction is 0.30.
5. A 10 N object is pulled up a 10° incline by a 5 N force. The coefficient of friction is 0.20. What is its acceleration?
6. A man pulls a 300 N object across a horizontal surface using a 100 N force applied at a 35° angle. What is the normal force? If the object is pulled at constant speed, what is the coefficient of friction?
7. A sailboat sails west at 15 m/s. A current of 4 m/s flows south. What is the velocity of the sailboat relative to the bank? If he can only sail with a maximum speed of 15 m/s, at what angle should he sail in order to end up exactly even with his starting point?
8. Find the tensions in the cables shown.

   

9. Find the tensions in the cables shown.

   

Vector Applications Notes

Vector Applications Homework